**4.1.4 Parabolas Open Up or Open Down - YouTube**

Tell weather the parabola opens up or down and find the coordinates of the vertex and the axis of symmetry y=-x^2-4x+2. .. y=-x^2-4x+2. Your questions can be answered after we change equation to standard form: y=(x-h)^2+k, with (h,k) being the (x,y) coordinates of the vertex.... Thus your slope is standard rise over run, like a stair step and simply goes up or down. Y = x ^2 + x + 4 is nonlinear. When graphed it becomes a parabola, which looks like a hill on your graph.

**Does the parabola open up or down?10m + m 2 = 21 + y**

I knew that the "c" part of the equation moved the graph up and down and I knew that the "a" part of the equation "flipped" the parabola. So I began with the "b" part of the equation. I changed (+3) to a (-3). The parabola moved to the left directly underneath the red graph with which I want it to share a vertex. The only thing left to do is to move the brown up slightly so that they touch. To... One description of a parabola involves a point (the focus) and a line (the directrix). The focus does not lie on the directrix. The parabola is the locus of points in that plane that are equidistant from both the directrix and the focus.

**How to tell whether a parabola opens left right up or down?**

Your constraints on the parabola don't lead to a unique curve, so there are infinitely many parabolas that do what you describe. Here's how to get what you want. The result of (3) is the general for for a parabola that opens upward and has a vertex of (2,5) provided [math]a>0[/math how to watch free new movies on roku up vote 0 down vote Lets say you've given 2 points A, B and you want to know in which halfplane a third point C lies. The terms "below" and "above" as criteria are very vague, so you need a reference point, for example the origin.

**Newest Graphing Parabolas Questions Wyzant Ask An Expert**

But for your question, of how to know the exact coordinates of the points in the parabola, you just take any value 'x' and compute the value 'y' from the above formula. The parameters 'k' and 'c' control how wide/narrow the parabola is, and how much it is shifted up or down relative to the x-axis. how to tell if a ferret is deaf Parabola is basically a curve or path followed by a ball when it got kicked.when we kick a ball, it goes up and then come down while making a U shaped curve which is called Parabola. As the word parabola itself describes the meaning that is, “para” means “for” and “bola” means “throwing”.

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### Can guitar tabs tell you to strum up or down if not how do

- Can guitar tabs tell you to strum up or down if not how do
- Mathway Find the Axis of Symmetry y=-x^2-6x-7
- How to tell whether a parabola opens left right up or down?
- Mathway Find the Axis of Symmetry y=-x^2-6x-7

## How To Tell If Parabola Goes Up Or Down

2008-05-26 · General form of a quadratic: ax² + bx + c if a > 0 (parabola opens up) if a < 0 (parabola opens down) if a = 0 (linear equation) Add on: May 27, 2008 10:17 EST ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ For y=-0.6(x-7.5)²+2.75 has the form of y = a(x - h)² + k, where (h,k) is the vertex of the parabola.

- So the value of a determines whether the parabola is everywhere concave up or everywhere concave down. Thus, the parabola opens upward whenever a > 0. The parabola opens downward whenever a Thus, the parabola opens upward whenever a > 0.
- diagram will be a parabola. If the shear diagram is a parabola, the moment diagram will be a cubic. 4) You can tell if a triangular shear diagram should “turn into” a “skinny” parabola or a “fat”
- We say that the first parabola opens upwards (is a U shape) and the second parabola opens downwards (is an upside down U shape). In order to graph a parabola we need to find its intercepts, vertex, and which way it opens.
- The p-value is the distance from the vertex to the focus, or the OPPOSITE of the distance from the vertex to the directrix (the directrix is usually a dashed or differently colored line, and the focus is a dot usually labeled F). If the graph goes up, we know that the p-value is …